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Potassium Bifluoride

Molecular Formula:KHF2
CAS NO.: 7789-29-9
Molecular Weight:78.10
Property:White crystal, slightly stink. Soluble in water and potassium acetate but insoluble in ethanol, water solution appears acid reaction. Hydrogen fluoride is not lost in dry air and is released by absorbing water in moist air. When heated to 310 ℃ have HF escape, When heated to 400 ℃ have the hydrogen fluoride vapor pressure of 1 atmosphere. The activity of molten potassium fluoride is higher than that of potassium fluoride.It's a pair of crystalline compounds.Poisonous.
Specification:

Impurity name

Index

Assay (KHF2)

98.5% min.

Silicate (SiO2)  

0.2% max.

Chloride (Cl)

0.05% max.

Sulfate (SO4)

0.05% max.

Iron (Fe)

0.005% max.

Lead (Pb)

0.005% max.

Usage:Used as an electrolyte for producing element fluorine, various metal welding flux.Wood preservative, benzene alkylation catalyst, etc.
Packing :25KGS compound bag, 25KGS plastic woven bag.
Caution at transportation:Must be kept from moisture.
Hazardous details:Inorganic acidic corrosive , UN No.:1811 , Class: 8 , Packing group: II

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